Rated 3.8 out of 5 by 35
Rated 4.0 out of 5.0 by Kiran Easy to install, kinda loud, very cold
I had a 10K BTU portable that just couldn't cut it for the room I was trying to cool, so I decided on this LG 12K BTU unit. It was pretty easy to install, even by myself; took less than an hour and I took my time. It no doubt can cool. The first evening I experimented and set it to 65 and in an hour it was -cold-. It is far and beyond more efficient than the portable, and even uses less electricity. (The portable was rated at 11.5 amps.) This is a big unit, and it's pretty loud, even on the lowest fan setting. Plan on putting it in the window furthest from where you'll be sitting/sleeping. The energy saver is a nice idea, but I find it annoying as the unit turns on and off every 3 minutes. It's also rather optimistic about the room temperature. It detects the room temp from a sensor in the front grill where the air is being sucked in, but as the unit cools and that area gets colder (the condenser is immediately behind it) the sensor seems to be picking up the temp of the condenser coil more than the room temperature. It will reach 72 and turn off the compressor, then the temp at the grill will rise again, until the compressor turns on again. So while it thinks the temp is swinging from 72 to 74, the room is actually staying about 75. I may experiment with moving the sensor. I also thought this unit came with a arm/brace for mounting it in a window (as I believe other LG units do) but it does not. Turned out I didn't need it anyway. Overall it's a beast and will cool very well.
May 26, 2014
Rated 2.0 out of 5.0 by rooster The worst customer service
Bought two then returned two damaged. Exchanged for two more. They worked but some interior parts did not mate like the second one. The thermostats did not cycle the same. They had a 7 degree F. temp. difference. Called for technical service and had no luck. I spent so much time with overseas people who you could not understand reading from a script. I asked everyone for their supervisor only to be sent to Canada who sent me back overseas somewhere else. I finally had to make an appointment for a service tech to see it. They would not let me speak to the tech. Every time I called ( I got disconnected several times) they new my name and want the problem was. When making the service call I was asked my name and number and what the problem was. I also gave them my mobile number to call. They called the work number every time. This was the worst service I've had in business since 1986. I would not recommend them for fear you would have to call them.
April 6, 2015
Rated 1.0 out of 5.0 by KaiserS 2 FLAWED UNITS
We have installed about 30 LG air conditioners in our apartment complex over the years and they have always been fantastic long lasting, quiet and dependable units across the brand. We installed one of these after buying it a few days ago. It was extremely loud and did not produce cold air. We removed it and exchanged it for another unit. The replacement is cooling but is also extremely loud. I am returning it and purchasing something else. Really unfortunate. Both boxes were in perfect condition, it may be a manufacturer defect that is not being recalled due to buyer ignorance. I would not take the chance with this unit / model.
April 2, 2015
Rated 4.0 out of 5.0 by ih8rt7 Powerful and Quiet
I needed to find an A/C unit that pushed 12K BTU or larger, but could still fit into a standard window; specifically the height (<16"). This was the only unit I could find that met the criteria. Based on the height requirement, I needed to remove the lower window (standard double-hung style). That gave me the 16" opening I needed for the unit.
Installing the unit would be easier with two people due to the weight and bulkiness. You have to remove the outer shell and front panel from the compressor, coil and electronics. It comes out like a dresser drawer, that sticks; so having a helper will make that step much easier. Now you have a fairly light shell that you connect the side curtains to and fit into the window opening. The key part is the adjustable brackets that connect to the bottom of the shell and your casing or brickwork. These brackets will hold the majority of the units weight, AND provide the appropriate angle (front to back) and leveling (side to side).
At this point, the instructions call for putting in two retaining clips. They provide a warning that the tabs easily break so install them according to the instructions. Unfortunately, the picture(s) in the instructions are almost useless. They are too small to see which direction they are supposed to go, or even where they specifically go. Their instructions, in general, are poor. They use different names for the same parts in different sections, and, as noted above, the graphics are too small, blurry, and far too few for something that has a number of step-by-step instructions.
Based on the style of your window (my double-hung casing has almost 2 inches of thin edging), you may want to reinforce the bottom. I added a couple strips of 1"x1" under the unit, to provide a solid stable base, and give a tight connection for the curtains to be screwed into at the bottom. The top of the curtain is screwed into the frame of the upper window.
Now that the shell is firmly put in the opening, the guts of the unit need to be slid back into the shell. This is another step that is easier with two people. Once you have the unit's base lined up with the rails on the shell, it slides in easily. It is critical that the leveling brackets be installed securely and ready to bear the weight of the unit. If not, you could possibly damage your window or its' casing; or worse, have the unit go right out the window! I also added a piece of 1"x1" with "L" brackets across the top for stability and security. Any air-gaps were filled with insulation.
The instructions mention having to pull out an adjustment arm behind the electronics. Again, there wasn't a picture for this step, so it was unclear what to do. There is a plastic arm that looks like it may open/close a small vent near the fan, but the instructions do not say when or why you would open or close the small vent. It also looks like it is supposed to provide a single handle to move the air direction louvers left and right. Unfortunately, the fragile plastic connector between the louvers was missing on the left side, so I have to manually turn 3 of the louvers manually with a pair of needle nose pliers - no biggie since once you set them, there isn't much need to change their position. Also, since the instructions don't specify what to do with the plastic arm, if you pull it through the louvers, it prevents you from moving the louvers up and down.
Lastly, you put the front panel and filter back and put all the screws for the shell back. I find the way the front panel connects is also poor. It has tabs on the edges and two recessed screws. The front panel [on my unit] appears to be slightly warped, so it does not fit smoothly. For the recessed screws, have a magnetic-tip screwdriver in your tool-bag since you need to hit the center of the recessed hole.
So now the unit is ready for operation. I have had the unit running for about a month and I am VERY impressed. It is very quiet and puts out very cold air. Using an HVAC thermometer, it consistently puts out air 20 degrees below your set value (Example: if you set the AC at the lowest temp, 61deg, the air temp generated by the unit is 41deg). I use the energy-saving mode most of the time. Once it reaches the set temperature, the unit will kick-on a "low fan" to maintain the temp, or when needed (lets say someone opens a door and lets a lot of hot air in to the room) it will boost to a "high fan" if it detects a significant difference in temperature.
The only issue I have had in the month I have had it running, it the "clean filter" light came on. I pulled the filter and it looked clean. I did a quick vacuuming of the filter and the front panel anyway. Again, I had to pull out the instructions to find out how to reset the filter light. You must press the up and down temp arrows at the same time to reset the light (not the most intuitive way to do it).
This AC is cooling a 24' x 20' open family room, that has a bedroom off one end that is 14'x14', and a 4' wide hallway at the other end that leads to 3 more rooms. Even when the kids leave the other doors open, this unit maintains the set temperature.
The only task I have left to do is to build an insulated box to enclose the unit during the winter; as I would rather leave it in place, than remove it during the off-peak months.
October 1, 2014
Rated 5.0 out of 5.0 by barecuda very satisfied
I purchased this to replace my expensive, old ,central air system.
What a surprise, this cools as well and costs about half as much to operate. Even with adding another smaller unit to my bedroom, my electric bill is much less. Runs quiet and I especially like the energy saver feature.
May 5, 2015
Rated 5.0 out of 5.0 by notjim This is a fine product
We haven't used a window unit in many years. However, when our central A/C bit the dust we just didn't have the money to buy a replacement. This has done a great job cooling a little over 500 square feet in the hot Florida summer. We will be installing smaller units in the bedrooms and only cooling the rooms we occupy. Much more efficient that way. This was installed in a very wide window, but I just made my own fillers and it worked out fine.
April 25, 2015
Rated 5.0 out of 5.0 by fisheye very good unit for price
Easy to install. You will love having a remote control for a a/c unit. Beats standing in front with air in your face to change controls.
The style of filter on this unit is GREAT. So easy to clean.
May 14, 2015
Rated 1.0 out of 5.0 by Bryan Inconvienent
It ran for approxiametly 12 hours and started to knock loudly and quit blowing cold air.
November 12, 2014